Iran's economy has suffered many economic fluctuations for many years. Therefore, stabilization studies about the country's economy must have a significant contribution. One of the ways of economic stabilization is taxation. Among the types of taxes, automatic stabilization taxes are especially considered. This research aims to measure the effects of taxes and take a look at automatic stabilizer taxes especially. Economic data from 1372:1 to 1397:4 was used to conduct the paper. The SVAR model has also been used to estimate the research model. The results showed that the best automatic stabilizer tax is the Income tax.